FIELD: television technology.
SUBSTANCE: invention relates to television technology and can mainly be used in surveillance systems. The result is achieved by using CMOS photodetector matrices as sensors of the TV camera, setting the required ratio of the gains of the photosensitive elements for their targets. Moreover, to compensate for the optical losses of the beam splitting, the magnitude of the gain of the first sensor of the television signal is β times higher than the value of the gain of the second sensor of the television signal, where the value of the coefficient β is calculated by the formula
where D/ƒ is relative aperture of the additional camera lens (beam splitter lens); τ1 - transmission coefficient of the beam splitter lens; τ2 is the transmission coefficient of the collective lens of the beam splitter, and the “synchro” input of the second TSS is connected to the third output of the sync pulse selector.
EFFECT: reduction of losses in image resolution over time.
3 cl, 6 dwg, 3 tbl
